Bengtsfors municipality is a Swedish municipality in Västra Götaland County, in western Sweden. Its seat is in Bengtsfors (pop. 3,600). The municipality has much water areas, consisting of lakes and streams. It makes it a good place for canoeing, fishing and bathing. Every year a canoeing marathon called Dalslands Kanot Marathon+, or DKM+, is held. It is an enduring 55 kilometers long (a marathon "plus"), stretching through the many municipal streams, and one of Sweden's largest canoeing competitions. Bengtsfors is also crossed by the Dalsland Canal.